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LOUIS HAR'MYER, O'F CINCINNATI, OHIIO. Letters .PatentNo. 73,246, dated January 14, 186 8.

IMPROVED COMPOSITION FOR PBESERVING W001), METAL, GAHVAS, 6:0.

TO WHOM IT MAY CONCERN:

Bo it known that I, Louis HAKMYIJR, "of Cincinnati, Ohio, have ini'en'ted u now, usefnl, end'improved Compositionof Matter.

This composition is composed of tar, rosin, sulphuric ncid, eopperas; salt, alum, lime, snd'ehrbon iron.

'.lhese articles 1 compound in the following proportions, and in the followingmanner; that-i3 to sny,'tt.ke one barrel ef tar, putit in a kettle, and boil it for half an hour; then take tenL (1.0 lbs.)p9uudspul'erized rosin, nn'd' mix with the tar, nnd boil until the rosin is dissolved; thenniiji! cnrefnllymith the tar end'rosin two undo bolt (2} lbs.') pounds of sulphuric acid; then add and mix with like care ten (10.lbs.) pounds of pulverized copper-as, six lbs.) pounds salt, si.x (6 lbs.) pounds pulverized alum, sixty lbs.) pounds lime,

and two (2 lbs.) pounds carbon iron, and the composition is complete.

' A smaller or larger quantity can be compounded-by using substantially the same relative proportions. This composition is of great valuefor the preservation of wood, mets.l, canvas, lesther, pnper, &c.', 8tc., and, mixed vith another composition, hereinafter described, may be used as a pnvemont for streets snd w'alke, nnd mixed with two articlesph'ereinsfter described, makes a superior'dark sealing-wax. p Having described the manner and process of oompouuding'it, I now proceed to'describe the manner of using the some. I V V i i t I Bloelr s'or piecesof woodfor -ivooden structures, are greatly benefited by the use of this composition. The blocks should be saturated ivith hot composition. Where that cannot well be done, the composition may be put upon blocks, and upon structures, warm, with a brush. On metal, it should, be put on in a warm day, or, better, inn worm room, with n, bru'sh. Canvas soaked in it for a few minutes, then rolled and dried. Leather may be painted with it warm. Better to-soak it, say, for fifteen minutes, in wurmcompositi'o'n, then rolledand driedin u Y's arm room, and rubbed with rags. Paper and pasteboards'for roofing, or. for many cthe'r purposes, should be saturated with hot composition, and then rolled'through rollers. Brick and stone may be soaked in-hot composition, or'tlie hot composition may be put on with a brush, v8w. I I

This compositionmnkes wood tYst-iwroofind air-tight,l&c. On met'sl roofing, &c., it is proof against the I corroding efl'ects of rain and atmospheric changes; It renders canvas water-proof. So also of leather, psper,

and pasteboard, and, for roofing'with pap er, isfsuperior to any composition in use.

For a pavement, the composition should be made hot; Then, to one barrel of composition, add one and s half barrel of ,puluerized rosin, one end a half barrel of lime, and dry fine gravel e'no'ughto make itnearly s dry substance. Then put it down hot,"cnd-put marble-dust upon it. i

" To make sealing-wax, take one pound of composition, mnks it hot, and add two pounds of pulverized roslfl and halt a pound of pulverized chalk.

This composition may be used for many useful purposes other then-those specified. As a general rule, it should be used warm. Where the article to which it is to be applied cannot be soaked in' it, the composition may be painted upon it. i

Having thus described the nnture of my invention, -the msnn'er of compounding and using the some, I now stnte that I claim as my invention- The composition itself, and the manner and process oi'compounding and using the some, suhstautiolly as herein set forth.

LOUIS HARMYEB.

Witnesses:

J. C. FAY, E. Gimmes. 

